Liquid meter



Jan. 24, 192s.

J. H. F. FITGER LIQUID METER Wiz?? Filed Aug. l0. 1926 Jan. 24, 192s. www

J. H. F. FITGE LIQUID METER Filed Aug. l0, 1926 8 Sheets-Sheet 2 A70/@SEKS Jan. 24, 192s. 1,657,383

, J. H. F. FITGER LIQUID METER Filed Aug. lO, 1926 8 Sheets-Sheet 5 Jan. 24, 1928.

J. H. F. FITGER LIQUID METER Filed Aug. lO. 1926 8 Sheets-Sheet 4 Egg/Z Jan. 24, 1928.

1,657,383 J. H. F. FITGER LIQUID METER Filed Aug.1o. 1926 8 sheetssheet 5 /NVE/VT/Q Jus T05 H E F/TGE@ 1 "57 J. H. F. FITGER ,J ,383

LIQUID METER Filed Aug. lo. 1926 8 Sheets-Sheet 6 in 672 m 7 @1yj 662 Ewa. L 7/2 4 /Z 8 Sheets-Sheet 7 J. H. F. FITGER LIQUID METER Filed Aug. 10. 1926 Jan. 24, 928

Jan, 24, 192s. 1,657,383

A J. H. F. FITGER LIQUID METER Filed Aug. 10, 1926 8 Sheets-Sheet 8 lll f struction.

Patented Jan. 24, 1928.

`UNITED STATES JUSTUS HERMAN 'FERDINAND FITGER, .OF MDSOMMBKRA'NSEN, SWEDE.

LIQUID METER.

Application filed August 10, A1926, Serial No. 128,428. and 'in Sweden May l245, 1925.

This invention refers to such liquid lneters` as are provided with two or more sta tionary vessels, which .are alternately iilled and emptied and in which the streaming .in and out of the liquid is regulated a valve device `or the like.

In the accompanying drawings three .conetructions of the measuring device are shown, each provided with a special float chamber, situated outside the measuring vessels. Figs. 1 9 show a construction, intended for being arranged on a wall. Fig. 1 is a cross section in .iront view 'through the measuring apparatus on line `11 of F ig. 2. Fin'. 2. is a cross section through the measuring apparatus taken at right angles to that ot Fig. 1 on line 2--2 of said igure.

VFig. `3 is a horizontal section through the inlet channel of the apparatus on lline 3-3 or' Figs. -1 and 2. Fig. 4; is a Yiront view'of the measuring apparatus with the cover taken away. Fig. 5 shows the upper part of the measuring apparatus on a larger scale. Figs. 6, 7, 8 and l9 show schematically the different positions of the operating parts in the course ot a measuring period. Fig. la isa .-:cctionai View ot" the top float valves in the construction `shown in Figures l to E). Figs. 1042 show the second con Figs. 10 and 11 are two cross sections through the 'measuring apparatus at right angles to each other, Fig. 10 being a sertion online 10-10 of Fig. 11, and Fig. 11 .a section on line 11-11 of Fig. 10. Fig. 12 is a iront view of the regulating device, the front cover plate being removed. Figs. 153-23 show the third construction. Fig. 13 is a front view partly in section of the measuring apparatus with one cover taken away. Fig. 14 isa front view partly in section with both covers taken away. Fig. 15 is a horizontal section taken lon the rline ii-A oi Fig. 13. Fig. 16 is a horizontal section on lthe line .l- B of Fig. 13. Fig. 17 is a cross section through the middle ot the measuring apparatus. on line 17-17 oi q ig. 11. 'seen troni the side. Fig. '18 shows a hack view 'of the measuring apparatus with the rear cover removed. Fig. 19 is a top view o'' the apparat-us with the ,parts above line in Figure 13 removed. Fig. QOshows the measuring apparatus from yhelow. Fig. 21 is a detail sectional view showing a regulating slide valve in position to admit the liquid to one vessel. Fig. 22 is a similar View showingthe regulating slide valve in them.

position to permit the outflow of the liquid. 23 a horizontal section 'taken on the line DMD of Flg. 13. Fig. 2li isa horizontal Vsection on the line EE of Fig. 13. Figs.

2G and '27 show schematically the Adifferent positions of 'the regulating mechanism ing vos. ls, while the lower regulates the outflow lrom the measuring vessels. Above those there is a chamber 5, containing a float. The chamber 5 can at the ytop be closed by a cone valve 7, which is liXed to the valve cap 3. An arm 9 is at one of its ends pivotally connected to the cap 8 and at the other end is 'pi'.ovidedwith. a journal movable in a -.groove 1in an arm 10, arranged f on a shaft. This groovel'is at xboth of its ends turned slightly upward, as shown in Figure 5. When the cap S stands :in lowest position, the top end ot the arm 9 is .always resting in the lowest part of the said` grooves. When the cap moves upward, the

arm 9 cani'iot move in Vthe lgroove due `to 'the angle ybetween the Varms 9 and 10 and due to the above mentioned upward turned parts of the groove and the `arm 10 must therefore be turned. lWhen the cap 8 movesdownward again, the arm 10 is held inY its position h v the counterweight 13 and the upper end of the arm 9 will slide in thegroove of the arm 10. On the same shaft' as the arm 10 two other arms 11, 12 and a counterweight 13 are placed. To each end `of the arm 11 a coil-spring 14 or y15 is fixed. The other' ends of those springs are by means of flexible wires or chains connected to a. spool 16, attached to the cock plug 3. `On kthis plug there also is another spool 17, which by means oit a flexible wire or chain 18 iis connected yto the spool 19 on 'the cock plug r4. A spring 20, which can be tension-ed by `means ot screw 21. keeps the turning plugs pressed in andsnugly iitting their respective casings. y'

f 0n the plug 3 thereyis provided'a sectorformed plate 22 provi-ded withftwo notches Figure 121a shows the connection loe?v 23, 24, into which two pawls 25, 26 may enter. The pawl 25 is connected with the arm l2 by means of a liexible wire or the like 27. In order to: increase the throw of the pawl 25 the wire 2T is led through a wire eye 28. The pawl 2G is hv means ot' arod 29 attached to a lioat 30 in a vessel. 3l. The liquid streams into the apparatus through an inletchannel 2:34 (Figs. Il and 3). Each of the measuring vessels is provided with a valve-85, 36, each closed by spring. in order to let in air when the vessel is en'iptying. During the fillingl of the measuring vessel the air, being' in the vessel, escapes through a channel 87.

`In operation liquid streams into one et the two measuring1 vessels through the cock 3, at the same time as the liquid, in the other measuring vessel, flows outthrough the roel; 4. After the measuring vessel, under fillinff`j has got filled, further liquid streau'is into the measuringA apparatus and also fills the chamber 5, the float (3 risinp; and closiiw the Valve 7. As soon as the measuring; vessel, from which the outflow tochr place, becomes emptied, the cocks are automaticall;Y reversed b'v means of auf1 mechanical or electric device, so that the then filled vessel will he emptied and the emptied one will he filled.

Ifonewould follow the progress of a` measuring operation, it is convenient to consider the period begun just before the cocks move in one or the other direction, ttor instance from the position, shown in Figs. l and 6, to the positiomshown in Fig. 8. The requisite for this movement of the cocl-:s taking place, is that the measuring' vessel las well as the float chamber 5 shall have been filled and that the fioat 6 shall `have risen and adjusted the arms 10, 1l, l2 in the Jositions, set forth in Figs. l and t3. Fui-t ier the vessel 3l must have' been emptied and the float 3() in consequence of that have taken the position.` shown in Fie'. l with dot and dash lines so that the paul 2G is disengaged from the notch 23 of the plate 22. The two cocks 3 and 4, which are positivelyy geared to each other by mea-ns of the chainl8, have thusbecome freed and turnS influenced by the spring 14, to the position set forth in Fie. 7. In Figs. @-9 it has been considered sutlicient to show one ol the cocks. lVhen the cocks are turned, the measuring vessel 2 will` he broughtk into comn'iunication with the float chamber 5, and the other measuring vessel I will begin to` empty throughthe cock 4 which is opened. lilhen the vessels 2 and 5 have been connected through the cock 3, the liquid fiows from the chamber 5 down into the measuring vessel 2, the float 6 then sinking and thef arm i) sliding in the groove of the arm l() to the po sition, shown in Fig. il However fresh liquid is also flowing in through the inlet channel 34, but itis of importance, that .filling of the same vessel. Aliso iu the liquid may not flow in too` speedily,

otherwise the liquid surface in the chamlulir would not sink and the arm .l would not he able to take up the position shown in llin'. T, which would be necesaryT in order that the cocks shall neat time he ahle lo turu. llf'hen the measuring vessel 2 has hren filled, the liquid coming' vfrom the inlet channel fills the chamber 5 and lil'ts the linut d. which in turn causes the arms itl. ll and l2 to he turned to the position. shown iu Fin'. 8. the spring 15 then heiuu il'urtlier teusioned and the spring; i4 slaclted. Thu-intl!` this movement et the arms 10. lfl. l2 the pawl 25 holds the plate 22. so that the cocks cannot be turned, until the arm l2 has nearly reached its end position. for the pawl 25 is not disengaged uut-il the arm l2 nearly reaches its end positions. Hoon after the liquid in the vesse. 3l has discharged the float 30 sinks, it heine; held in lil'ted posiu tion while the liquid from the vessel Al is flowing into the vessel 3l. llllhen the 'float lll sinks, the pawl 2li Ais turned out ol" chungoment with the plate 22, so that the cfr-lis il and 4 under inllueuce of the spi-im); l' can turn tothe position shown in lfu. El

Due` to this eirqitvii'ur oi the chamber 5, the float (i will first sinh'. '.l'hc

arms i), 10, ll and 12 will then occupi' the position shouh in Figure E). itill'er a while the vessel il is filled. The liquid will thm again enter chamher and raise the float (5. The arms ll. lll, l1 and l2 will thou return to their orinjinal imritionsA :is shown in Figures l and l5, und the operalitui iu repeated. p

lilhcn the liquid is to discharife l'roiu either of the measuring1 re .I or it must he reigilaced bj: air. comes lu through the if'alve 85 or Btl. Either valve is kept Open, when the vessel. iu which il` is arranged,` is emptying. hut is closed durinii lillinu' of a measuring' vessel the air in it illust `heremoved. An arranfferuent for this pun `pose is indicated in ll f 2 and ll. .-"t, channel 3?, at its top commimicatiiml with the chamher 5, is divided therelielov.' from the chamher 5 by means of a wall Jill. it the hollmn this channel runs to the cof-lf plug: l aud thus communicates pei-initialll).r with the res sel being1 filled. llllhen the chamber 5 filled, the channel 37 too will liecomz' Filled, but as soon as the filling' of a rueusurlqi' iiessel begins, the liquid sm'lacu in the chant her i sinks and `will shortlyl il: lieluxr the .lill

liili liquid surface in the chamber '5 will sink slowly, partly on account 'ot the large `area thereof compared with that oi' the passage et' the plug, and partly because While liquid is i'lowing from the chamber 5 down into the measuring vessel, fresh liquid ltlou's 1in through the inlet channel 34e. The :liquid in the channel 8T on the contrar5`v flows speedily down .into the measuring vessel, the air o't this Vessel. which has been somewhat 'com` pressed during` the `lirst part oi' `the :[illirne,I period, then being able to discharge through the channel 37. i V L' Another construction, according' to .the saine principle. is shown in Figs. 10, 1l and. l2. Most parts 'here are equivalent `With the parts in 'the construction deserih'edahove and therefore marked AWith corresponding numerals. l-loweveny some new parts are also shown in this construction.

The casing is constructed in a similar WimY as that oi" Figures l to f). lt consists of two `measuring-vessels l and 2. In the upper and lower ends of `these vessels the three-way coclrs 3 and el' are placed. there the cock is a chamber 5 placed, just-as inthe first described construction, but in this case the chamber is made ymuch lsn'iafller than there. Below the -vessels is a chamber 3l placed in `the same Way as the-chamber 8l in last described construction.

ln cach measuring `vessel isprovided a float. 39. 41:0. These are hy `means yot vertical rods il, 42 jointed `with Athe ends of arm l. The arms l0. and ll and the countorn'eieht lil are "mounted on the saine loue nave which movable -on a pivot, tas-tened on the casing. ln the' ends `of the arm ll arefthe springs lll and l fastened. lf he otlier'ends 'oit these springs are 'fastened to `the spool i9 in the saine -Way as isdescrihed in `the Amodifica'tion Figures liet). It has i'iothinp; to do with `the 'working' lof 'the apparatus. that they in 'this Ainodification are connected to the lower one instead of tlicauulicr one ot the cocks, as in the irst described. because in hoth cases the cocks are connectml to each other. The floats'l'., 40', are at `their tops provided with conically turned seats 43. 1li. which are In'iade to tit tight against the corresponding' conical `parte 4-5. 1.6@ in the measuringv vessels. The float t `in this niodilication has nothing; `to `do with the tightening' or slacking of lthe springs. hut only to operate the pawl .25, which prevei'its the c cls from .turning` till the chamher 5 is filled and this cannot he done unless the measuring vessel is filled. The iloat ti is connect-ed to the ,pawl hy means o't'thearn'i 47 andthe rod Q7. (Fig. l2.) (ln the saine pivot the pawl is also "the paul 26 mounted inthe same Way descril'ed iu `the rst modification.

*Vlie function during` one measuring period is the following: Liquid enters 4through that is under the same `conditions as describedV in 'the `first `modifi ation As soon eas the plate '22 is Amade ifree, ithe three-Way eoe'ks will, under the influence oflithe springs lli', 15" turn Etoza position, 4in which thecoek 3 opens `the measuring' vessel 2 for filling and the `cock f4 opens ithe measuring vessel. l for stepping. -Thereloy :irst the lioat- 6" will sink vand the slioat i230 yrise .and later,

utter the vessel 2 .has iheen filled the Yfloat 6 Will `riseiagain vand .the loat 30 `Will sink again. Theunext measuring' period lwill then proceed Viin the same Way ashere described.

In this construction one'g'afins the `advantage over ethat flirst described, Ain 'that the iloat G can the inade :much Smaller .than 6, uhile :its movement is only xnsed ttor iregulatng the pawl .25. The -eomparativehv heavy Work ito setthe Spring lll', l5 is Iiperitormed by stheuloats 39', 40. Concerning' the said .floats their specific gravity is not important, in contra-distinetion to .the loat ,1that ought to Ahave asilow speoiiiogravity as `possible, at `an;T irate lower than that `oi. the liquid. Nor :in this construction may the vliquid flow away tinto fthe measuring' apparatus .toe quickly, for the .arm 47 `must he :able to sink .and loperate upon `the pawl 25,1so that itmay keep rthe cocks in position, until ethe measuring' vessel heine under illing.=as '.Well as thechamhers have `goliiilled.

Figs. 13-28`show .a third construction of the `liquid meter, suitable to arrange on a detached plate-column and intended for use as tappinejstation .-tor saleoj petrol.

This `construction diiiersu'trom 4that first described (Figs. -1-9) 4essentially yin Athat the three-Way `cocks 3. l .are .replaced hy common slide valves 48, 49 and 4in that thespiral spring'sll,` 15 `are replaced `by Weights 502 and 50H2. i

`The liquid meter accord-ing' Ato this moditication is intended for heine '.ted directly from -a :handpump Un lthe bottom ot the meterare'two-oval .lanehes 582 and '58212 ar ranged. Then the :meter is inountellor sale from an underground Storage cistern one pipe-goes trompthe liottonrot the cistern to a pump and from the :pump to the ftlanch 582. Another pipe, :the return pipe, groes from flaneh 58H2 Vto lthe top 'ot the cistern. The liquid ytherefore will enter ithe. ymeter through the flaneh and the pipe 582.

Them-ain parts of ythe meter in this modi- LIU tication are arranged as follows: Two measof the float 62 is a hold 3&2 provided, which connects the chamber 52 with a special filter chamber. This iilter chamber is dividedin two parts through the lilter cloth 552. Below this filter chamber is a tanlr562 for gathering ot' separated in'ipurities `and a cock 5"2 for draining et the same.

lf'llhen the liquid has entered the meter through the pipe 582 it passes through the opening 592 Fig. 18 to the outer part of the filter chamber. From there the cleaned liquid passes through the filter' cloth, while the impurities sink down to the chamber 502. The cleaned liquid passes through the hole 342 to the float`- chamber 52 and from there to one et the measuringl vessels. It the slide valves stand in the positions shown in Fic'. let the liquid will enter the right hand vessel 22. Atterthis vessel has been filled the liquid rises into the floaty chamber 52 and lifts there the float 62. When this chamber, too, is lled a special way` is arranged for the liquid further pumped to avoid a too high pressure on the slides and also to avoid a too speedy filling of the vessels. The superfluous liquid passes from the inner part of the lilter chamber, through the chamber 512, (as shown by the arrows c in Fig. 18), over the overflow partition 522 and through the chamber 532 to the tlanch 5822 (as shown by the arrows (Z in Fig. 1S) and through the above mentioned return pipe back te the storage cistern. The channels 372 have the same purpose as the channel 37 ot' Fig. 3, though this construction is provided with one channel for each measuring vessel.

It is above described how the liquid first fills the vessel, in this case the vessel 22, and afterwards the chamber 52. During the fill ing of the chamber 52 the float 62 will rise. In the same way as described in the first modification the arm 92 will turn the arms 102 and 112. These will then litt one of the weights, in this case the weight 502, (always the one on the same side as the vessel just filled) `from the position shown in Fig. 13. Vhe-n this weight has nearly ,reached its top position the pawl 712 snaps in and pre vents the weight from falling back. )When the weight is lifted still a little higher the arm 632, which is connected to the weight, will strike against the arm 042 of the pawl Gl' 2, so that this pawl will release the weight 5022. The arms, pawls and weights have, in this moment the positions showninFiOf.

25. Supposing that also the pawls 262, which are two and always act sinmltaneously and are influenced inthe same wa3T as the pawl 2G in the first described modification, are released, the weight 5022 will 'tall down and turn the arm 662 from the position, shown in Fig. 25 to the position, shown in Fig. 26. (In Figs. 2:'3-28 the pawls 262, which are in front ot the pawls G42 are left out for pla-inness). New the arm 002 mounted on the same shalt as the arm 672 which engaged the two slides 1182 and L192. (lonsequentlv7 even the slides will move, and they will move so that tht` slide 15.52 will sink down and thereby open the vessel 12 for filling and the slide 102 will be lifted, so that the 'vessel 22 will be emptied. The slide positions for inlet and outlet are clearly shown in the Figures 21 and 22. Then the liquid enters the vessel 12, the float (l2 will lirst sink and then litt again, as described by the other modifications. After it thus has been aised again, the different parts obtain the positions, shown in Fig. 27, whereby the weight 502 is released and will drop down to turn the arm (S02 and therewith also the slides back to their original position as shown in Figs. 13 and lil.

The inlet and outlet of the air from the measuring vessels can for instance be donc through a narrow pipe extending upwards Afrom the measuring vessels which pipe may be without any valve devices. It the pipe narrow enough, the measured volume off liquid will be affected very little.

Having now described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a liquid meter, two vessels, a chamber above the vessels, said chamber having constant communication with the measuring vessel, a valve controlling said chamber and adapted to prevent the liquid from escaping prior to measurement, a float in the chamber and operatively connected with the valve, valves alternately admitting and discharging liquid into and from the vessels, and means operated by the valve of the chamber, when said 'alve operated b v the float, for controlling the movement ot the admission and discharge falves ot said vessels.

2. A liquid meter comprising two vessels, valves Jfor alternately admitting and discharging liquid into and trom these vessels, means for causing' the valves to move in uni son, float-controlled means lor operatingtbe valves, locking means for the valves, a chamber, a float in said chamber, and means controlled by said last named 'float for releasing the locking means.

3. In a liquid meter, two vessels, a chamber located above said vessels, said chamber being in constant communication with the measuring vessel, a tloat in said chamber, valves operating in unison to admit and discharge liquid from the vessels, means controlled by said float to operate said valves, means for locking said valves7 and means for releasing said valve locking means. v

4. In a liquid meter including two vessels, a chamber located above said vessels, said chamber being in constant communication with the measuring vessel, a valve for said chamber7 a float in the Chamber and operatively connected with said valve7 a pivoted lever1 operated by said valve, means operatively connecting the float and the valve, whereby to alternately admit liquid to and discharge the same from said vessels.

5. In a liquid meter including` two vessels, a- Chamber located above said vessels, said chamber beingin constant communication with the measuring vessel, a ioat in said chamber, a valve controlling said chamber and operated by said float, an armed lever, means for connecting said valve with said armed lever, a valve adapted to admit liquid to the vessels, and means operatively connecting said lever with said valve for operatingl the same.

In witness whereof, I have hereunto signed my name.

JUSTUS HERMAN FERDINAND FITGER. 

